use Net::Ping;
use Net::Telnet::Cisco;
use Getopt::Long;

my $host = "";
my $interface = "";
my $PRIList = "";
my $T1List = "";
my $T1Count = 0;
my $PRICount = 0;

GetOptions("host:s"    => \ $host);

if (!$host)
{
	print "usage: perl regexp_test.pl --host=(IPAddress)";
	exit;
}

my $p = Net::Ping->new();
if ($p->ping($host))
{
	print "\nDevice is online, connecting...\n\n";
	my $session = Net::Telnet::Cisco->new(Host => $host);
	$session->login('user', 'password');
	
	$session->cmd("term len 0");
	
	print "Retrieving T1 controller details...\n\n";
	my @check = $session->cmd("sh run | s controller T1");
	print "@check\n";
	
	for(@check)
	{
		# match an interface number e.g. 0/0/0, 0/1/0, etc
		if (m^([0-9]/[0-9]/[0-9])^)
		{
			$interface = $1;
			$T1Count++;
			$T1List = $T1List . $interface . "\n";
		}
		# check if the interface is a PRI (pri-group timeslots 1-24)
		if (m^pri-group^)
		{
			$PRICount++;
			$PRIList = $PRIList . $interface . "\n";
		}			
	}

	if ($T1Count > 0)
	{
		print "T1 Controller Summary:\n\n";
		print "$T1Count total T1 interfaces\n";
		print "$T1List\n";
		print "$PRICount total voice PRI(s)\n";
		print "$PRIList\n";
	}
	else
	{
		print "No T1 interfaces found";
	}

	$session->close;
}
else
{
	print "\nDevice OFFLINE!!  Connection aborted!!\n\n";
}
$p->close();

##</code><code>##

C:\perl scripts>perl regexp_test.pl --host 10.22.49.19

Device is online, connecting...

Retrieving T1 controller details...

controller T1 0/0/0
  framing esf
  linecode b8zs
  cablelength long 0db
  pri-group timeslots 1-24
 controller T1 0/0/1
  framing esf
  linecode b8zs
  cablelength long 0db
 controller T1 0/1/0
  framing esf
  linecode b8zs
  cablelength long 0db
 controller T1 0/1/1
  framing esf
  linecode b8zs
  cablelength long 0db

T1 Controller Summary:

4 total T1 interfaces
0/0/0
0/0/1
0/1/0
0/1/1

1 total voice PRI(s)
0/0/0